For the Big Brewery Category (they are probably technically Medium-Sized): --Lagunitas. It'd be one of my choices if taste was my only consideration, but when you consider the price of their six-packs and bombers, in light of their quality, Lagunitas strikes me as the best overall value around. --Firestone Walker. Everything they put in a barrel/box is world-class, and their regular line-up isn't too shabby either. Honorable Mention: Stone and Sierra Nevada And for the Small Brewery Category: --Fremont. My favorite local brewery, they seemingly do everything exceptionally well, from hops to barrels. A few of the most delicious beers I've yet had have come from them and their barrel program (the KDS and B-Bomb variants in particular). They're also, from what I can gather, genuinely committed to being good, responsible corporate citizens. --Reuben's. A small (but soon to be growing) operation, they brew in a surprisingly large number of styles. And while it's possible I'm just channeling their own slogan, it's all "Bloody Good Beer!" Honorable Mention: Boneyard and Black Raven ***Disclaimer for these choices: They have undoubtedly been influenced to a certain degree by geography and the fact that I've only been into beer for less than a year. I also believe they have some objective validity none-the-less.